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AMT INTERNATIONAL INC. ADV ADE Tray Project Report

Copyright 2005, AMT International, Inc. Plano, Texas, USA. All rights reserved worldwide.

For more information, please contact AMT International, Inc., 5028 Tennyson parkwayPlano, Texas 75024, USA. Tel: 972-378-0700, Fax: 972-378-9400, Email: information@amtintl.com

N-REMOVAL WITH ADV ADE PINNALCE PERFORMANCE TRAYSCustomer: Major Energy Corporation in USA

Project: N-Compound Removal from Iso-octeneC4 Feed Stream

Date of Revamp: June, 2004

BACKGROUND

Part of the modification in converting an MTBEunit to an Iso-octene unit required the C4 streamto have as low nitrile content as possible. Thiswas because the Iso-octene catalyst is moresensitive to the nitriles than the MTBE catalyst.The existing Water Wash Column at the Clients

Oil Refinery was not removing targeted N-compounds (mostly acetonitrile, ACN) from the C4Feed and was hydraulically limited. The Refinerywish to improve the performance of the subjectWater Wash Liquid/Liquid Extraction Column. Onepart of the solution is to maximize the theoreticalstages as part of an overall plan to improveextraction efficiency. AMT proposed revamping thecolumn with AMTs field-proven ADE PinnaclePerformance Extraction trays.

REVAMP OBJECTIVES

The objectives of this revamp were:1. Increase column throughput by >15% while

keeping the water to feed ratio at